import 'package:flutter_test/flutter_test.dart';
import 'package:marianum_mobile/api/marianumconnect/queries/timetable_get_rooms/timetable_get_rooms_response.dart';
import 'package:marianum_mobile/state/app/modules/timetable/bloc/timetable_state.dart';

TimetableGetRoomsResponse _rooms(String name) => TimetableGetRoomsResponse(
  result: [McRoom(id: 1, shortName: name, longName: name)],
);

void main() {
  final base = TimetableState(
    startDate: DateTime(2026, 9, 21),
    endDate: DateTime(2026, 9, 25),
    rooms: _rooms('A101'),
    dataVersion: 3,
  );

  test('returns the same state when the content is unchanged', () {
    expect(base.withReferenceData(rooms: _rooms('A101')), same(base));
  });

  test('bumps dataVersion and takes the new value when content changed', () {
    final next = _rooms('B202');
    final result = base.withReferenceData(rooms: next);
    expect(result.rooms, same(next));
    expect(result.dataVersion, 4);
  });

  test('keeps unchanged instances when only another field changed', () {
    final result = base.withReferenceData(rooms: _rooms('A101'));
    expect(result.rooms, same(base.rooms));
  });
}